WO2012065569A8 - High-pressure fuel pump - Google Patents

High-pressure fuel pump Download PDF

Info

Publication number
WO2012065569A8
WO2012065569A8 PCT/CN2011/082412 CN2011082412W WO2012065569A8 WO 2012065569 A8 WO2012065569 A8 WO 2012065569A8 CN 2011082412 W CN2011082412 W CN 2011082412W WO 2012065569 A8 WO2012065569 A8 WO 2012065569A8
Authority
WO
WIPO (PCT)
Prior art keywords
pressure assembly
plunger
cam
pressure
guide groove
Prior art date
Application number
PCT/CN2011/082412
Other languages
French (fr)
Other versions
WO2012065569A1 (en
Inventor
Zhaohui Tang
Jianxin Zhang
Guanqun Hua
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2012065569A1 publication Critical patent/WO2012065569A1/en
Publication of WO2012065569A8 publication Critical patent/WO2012065569A8/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/48—Assembling; Disassembling; Replacing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0413—Cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8015—Provisions for assembly of fuel injection apparatus in a certain orientation, e.g. markings, notches or specially shaped sleeves other than a clip

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

A high-pressure fuel pump comprises a housing (5) having a cylindrical high-pressure assembly chamber (55), a high-pressure assembly (2) for pressurizing a fuel, a driving shaft (3) for driving the high-pressure assembly (2) via a cam (50). The high-pressure assembly (2) comprises a plunger sleeve (20) inserted and mounted in the high-pressure assembly chamber (55), a plunger (22) movable back and forth in the plunger sleeve (20), and a cam follower device (4) driven by the cam (50) on the driving shaft (3) to enable the plunger (22) to move back and forth. The cam follower device (4) comprises a tappet body (6) slidable in the high-pressure assembly chamber (55), and a roller (8) mounted in the tappet body (6) and contacting with a surface of the cam (50). A guide groove (82) is formed on the periphery of the tappet body (6) and extends parallel to an axis of the plunger (22), and a guide part inserting hole (85) is formed in the housing (5) at a location corresponding to the guide groove (82), wherein an inner end of a guide part (80) is inserted in the guide groove (82) through the guide part inserting hole (85). The time for assembling and processing the high-pressure pump can be saved and fuel leakage can be avoided.
PCT/CN2011/082412 2010-11-18 2011-11-18 High-pressure fuel pump WO2012065569A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201020621276 CN201851248U (en) 2010-11-18 2010-11-18 High-pressure fuel pump
CN201020621276.9 2010-11-18

Publications (2)

Publication Number Publication Date
WO2012065569A1 WO2012065569A1 (en) 2012-05-24
WO2012065569A8 true WO2012065569A8 (en) 2013-01-03

Family

ID=44093645

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/082412 WO2012065569A1 (en) 2010-11-18 2011-11-18 High-pressure fuel pump

Country Status (2)

Country Link
CN (1) CN201851248U (en)
WO (1) WO2012065569A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201851248U (en) * 2010-11-18 2011-06-01 博世汽车柴油系统股份有限公司 High-pressure fuel pump
CN102465801B (en) * 2010-11-18 2014-08-13 博世汽车柴油系统有限公司 High-pressure fuel pump
US9162760B2 (en) * 2012-08-02 2015-10-20 Bell Helicopter Textron Inc. Radial fluid device with multi-harmonic output
US9376205B2 (en) 2012-08-02 2016-06-28 Bell Helicopter Textron Inc. Radial fluid device with variable phase and amplitude
US9061760B2 (en) 2012-08-02 2015-06-23 Bell Helicopter Textron Inc. Independent blade control system with rotary blade actuator
US8973864B2 (en) 2012-08-02 2015-03-10 Bell Helicopter Textron Inc. Independent blade control system with hydraulic cyclic control
US8857757B2 (en) 2012-08-02 2014-10-14 Bell Helicopter Textron Inc. Independent blade control system with hydraulic pitch link
JP6155962B2 (en) * 2013-08-21 2017-07-05 スズキ株式会社 High pressure fuel pump
GB2534397A (en) * 2015-01-22 2016-07-27 Gm Global Tech Operations Unit pump for use in a combustion engine
CN108723880A (en) * 2018-04-11 2018-11-02 东莞安默琳机械制造技术有限公司 High pressure micro adjusts pump and lubricating system with trace amount
CN112412722B (en) * 2020-11-05 2022-07-05 太原理工大学 High-speed active lubrication radial static balance plunger pump for high-water-based medium
CN114198229B (en) * 2021-12-13 2024-04-26 重庆红江机械有限责任公司 Cam box assembly of large high-pressure oil pump

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339724A (en) * 1991-03-05 1994-08-23 Wartsila Diesel International Ltd. Oy Arrangement for the lubrication of the piston member of a fuel injection pump
DE4227853C2 (en) * 1992-08-22 1996-05-30 Bosch Gmbh Robert Fuel injection pump for internal combustion engines
CN2663678Y (en) * 2003-07-28 2004-12-15 上海东维燃油喷射有限公司 High power type oil spout pump assembly
CN2639547Y (en) * 2003-07-28 2004-09-08 上海浦东伊维燃油喷射有限公司 Strengthened fuel-injection pump assembly
DE102006012458A1 (en) * 2006-03-17 2007-09-20 Robert Bosch Gmbh Roller tappet for a pump element of a high-pressure fuel pump
JP2008128164A (en) * 2006-11-24 2008-06-05 Bosch Corp High pressure fuel supply pump
CN201851248U (en) * 2010-11-18 2011-06-01 博世汽车柴油系统股份有限公司 High-pressure fuel pump

Also Published As

Publication number Publication date
WO2012065569A1 (en) 2012-05-24
CN201851248U (en) 2011-06-01

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